18469575

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 35747712

約数和(自身を除く): 17278137

約数列:

[1, 3, 5, 9, 15, 23, 25, 43, 45, 69, 75, 83, 115, 129, 207, 215, 225, 249, 345, 387, 415, 575, 645, 747, 989, 1035, 1075, 1245, 1725, 1909, 1935, 2075, 2967, 3225, 3569, 3735, 4945, 5175, 5727, 6225, 8901, 9545, 9675, 10707, 14835, 17181, 17845, 18675, 24725, 28635, 32121, 44505, 47725, 53535, 74175, 82087, 85905, 89225, 143175, 160605, 222525, 246261, 267675, 410435, 429525, 738783, 803025, 1231305, 2052175, 3693915, 6156525, 18469575]

約数ペア:

[(1, 18469575), (3, 6156525), (5, 3693915), (9, 2052175), (15, 1231305), (23, 803025), (25, 738783), (43, 429525), (45, 410435), (69, 267675), (75, 246261), (83, 222525), (115, 160605), (129, 143175), (207, 89225), (215, 85905), (225, 82087), (249, 74175), (345, 53535), (387, 47725), (415, 44505), (575, 32121), (645, 28635), (747, 24725), (989, 18675), (1035, 17845), (1075, 17181), (1245, 14835), (1725, 10707), (1909, 9675), (1935, 9545), (2075, 8901), (2967, 6225), (3225, 5727), (3569, 5175), (3735, 4945)]